Cuttlefish. A cephalopod related to the squid. The flesh of the cuttlefish is meatier and has a more complex flavour. Both the cuttlefish and the squid have an ink sac. The liquid it contains can be used in the cooking process but it should be added towards the end or it will coagulate. The ink of the cuttlefish is generally felt to be richer, denser, smoother than that of the squid.
The jícama, Mexican turnip or Mexican potato, is also known as the yam bean and is a tuber-like legume. It is a large bulbous root vegetable, a tuber of the legume family, with crisp, sweet, white flesh and a brown skin. It has a nutty flavour and can be eaten raw or cooked. I have seen it cut into strips and included in a salad.